Thorax was the king of Changelings and so he was so happy about having Changelings be more nice and spread love instead of feasting on love. However one day while walking...he saw a human but humans don't exist. But he still wants to give you a chance so he walked over.

Thorax: "Hello! Welcome to the kingdom of Changelings. I am the king of Changelings. Thorax but I prefer to just be called Thorax. So what brings you here?"